#include <unistd.h>
#include <stdio.h>
#include <string.h>

typedef struct _student
{
    char name[32];
    struct _student *next;
}student;

int main(int argc, char **argv)
{
    student *head=NULL,*swap;
    if(head==NULL)
    {
        head=calloc(sizeof(student), 1);
        head->next=NULL;
        swap=head;
    }
    else
    {
        swap->next=calloc(sizeof(student), 1);
        swap=swap->next;
        swap->next=NULL;
    }

    return 0;
}
